Mold for cement blocks.



N0..a57-,z14; BATBNTED JUNE 18, 1907.

G. E. STOKOE.

- MOLD FOR CEMENT BLOCKS. APPLICATION FILED JULY 6,1906.

W/ T/VESSES. INVEIVTORI THE NORRIS Prrsns ca., WASHINGTON. n. c.

UNITED snares CARL E. STOKOE, or GR PATENT OFFICE.

AND HAVEN, MiomeAN.

IVIOLD FOR CEMENT BLOCKS- Specification of Letters Patent.

Patented June 18, 1907.

Application filed July 6,1906. Serial No- 32 ,944.

Haven, in the county of Ottawa and State of Michigan, have inventedcertain new and useful Improvements in Molds for Cement Bricks; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to improvements in molds for cement bricks and likearticles; and its object is to provide a simple and convenient manuallyoperated device and to provide the same with various new and usefulfeatures hereinafter more fully described and particularly pointed outin the claims, reference being had to the accompanying drawings, inwhich- Figure 1. is a'vertical section of a device embodying myinvention taken on the line 11 of Fig. 2.; Fig. 2. a plan view of thesame; Fig. 3. a side elevation of the same; Fig. 4. an end elevation ofthe same; Fig. 5. a transverse sectionof the same; and, Fig. 6. aperspective detail of a plate used while filling the molds.

Like numbers refer to like figures. I

represents any convenient support upon which is placed a board or pallet2 on which the bricks are molded and which supports the same untilhardened, a sufficient number of these being provided to accommodate thequantity of bricks made during the time required for them to setsufficient to be handled.

3 represents the mold proper which consists of a series of cells open atboth top and bottom, each cell having vertical walls and being of thehorizontal dimensions of the bricks to be formed therein. This series ofcells forms a rigid frame provided with a han dle 10 at each end formanipulating the same as hereafter explained. Near the respectivecorners of this series of cells are guide posts 4 extending upwardtherefrom and rigidly secured thereto. These posts present verticalparallel surfaces to guide the relative movement of the cells, and thestripper frame, which latter consists of a plate 5 to the under side ofwhich are attached a series of downwardly projecting followers 6 havingbottom parts in all of the ed on the plate directly above the respectivecells and adapted to rest upon and engage the contents thereof.

At each end of the plate 5 are downwardly projecting guides 7 securedthereto and adapted to slidably engage the opposing surfaces of wardlyprojecting lugs 8 to in like manner engage the outer edges of said guidepost and thus insure vertical movement of either the followers or thecells. These guide frames 8 project downward a proper distance to engagethe pallet 2 simultaneously with the engagement of the followers 6 withthe upper surface of the contents of the molds.

9 are handles attached to the plate 5 to manipulate the same.

opposite ends folded to slidably engage the guide posts 4. l/Vhenfilling the molds, these plates are placed upon the guide posts andserve to prevent spilling the material over the ends of the molds.

The drawing shows the device filled and arranged in positionfor removalfrom the bricks, which is done by manually raising the cells whileholding the followers firmlv down upon the upper surface of the bricks,whereby the walls of the cells rise vertically between and around thefollowers a suflicient distance to be above the plane of the bricks andfree therefrom, and the guides 7 by engaging the pallet prevent thefollowers from crushing the bricks. Both the followers and cells arethen removed and the pallet 2 with the bricks thereon removed from thesupport 1 and another pallet placed thereon. The follower and partsattached are then wholly detached from the guides and laid aside untilthe cells are again filled; and the empty cells are then placed inposition on the pallet with the plates 11 upon the guide post 4, thecells then filled with material and struck off on the top in the usualway; the plates 11 then removed and the follower placed in the position.shown in the drawings, the posts 4 and guides 7 serving to accuratelylocate the same, and the operation repeated as often as occasionrequires.

What I claim is: i

1. The combination of a mold consisting of a series of rigidly connectedcells open at the dimensions slightly less than the horizontaldimensions of the respective cells and ad usttop and bottom, guide postson the mold, a detached stripper plate, a follower for each the guideposts 4 and also provided with out- I also provide two plates 11 ofsheet metal, one being shown in Fig. 6., each having the cell attachedto the stripper plate, and guides attached to the said plate andslidably engaging the sides and edges of the posts.

2. The combination of a pallet, a mold consisting of a series ofrectangular cells having parallel vertical walls and rigidly connectedto each other, vertical guide posts rigidly attached to said mold andprojecting upward handles on the mold and plate to manually and searately operate the same.

3. T e combination of a mold consisting of a series of cells open atthetop and bottom, guide posts at the respective ends of the mold, astripper frame having guides slidably engaging the posts, and plateshaving folded edges to detachably engage the posts.

4. A device for molding concrete bricks comprising a platen, a series ofrigidly connected cells open at top and bottom and hav ing parallelvertical walls, vertical guide posts at the respective corners of theseries of cells, a follower plate, followers attached to the plateopposite the respective cells, guides attached to the plate and slidablyengaging the posts and also'adapted to engage the platen and support thefollowers, handles on the cells and follower plate, and

plates having folded edges adapted to detachably engage the posts.

In testimony whereof I affix my signature in presence of two witnesses.

CARL E: STOKOE.

Witnesses: I

HARRY S. NIoHoLs, ALBERT METZGER.

